Every database employed to generate the UCC is listed here, with a full description
of the modifications and corrections made before merging it in to our final catalogue.
The individual csv files con be found here.
The original UCC article employed 32 articles, the rest where added after its publication.
Dambis 1999
Space-age distribution of young open clusters and observational selection
The Vizier table lists 202 clusters.
Removed entries pointing to a GC: Lynga 7.
Changed names:
- NGC 1976 -> Trapezium
- van den Bergh 1 -> VDB 1
- vdB-Hagen 99 -> VDBH 99
- Pismis 6 –> NGC 2645, Pismis 6
Coordinates given by Vizier to Markarian 38 & 50 are wrong, fixed both.
Dias et al. 2002
New catalogue of optically visible open clusters and candidates
The data was obtained from the HEASARC archive. Removed all entries with these classes:
a = possible asterism/dust hole/star cloud (no cluster)
cr = Cluster Remnant (Pavani and Bica 2007A&A...468..139P)
d = dubious, objects considered doubtful by the DSS images inspection
g = possible globular cluster
m = possible moving group
n = "non-existent NGC" (RNGC, Sulentic, 1979, Cat. VII/1). Some of Bica's POCRs (Possible Open Cluster Remnant, 2001A&A...366..827B) are also "non-existent NGC" objects.
nf = objects not found in the DSS images inspection (wrong coordinates?)
o = possible OB association (or detached part of)
Converted RA, DEC columns to degrees.
FSR 1496 duplicated in lines 1015, 1016; removed 1016
These entries corresponded to a single entry in the UCC. Only one was kept, selected according to the primary name in the UCC:
- 330 teutsch1, 331 koposov27 –> koposov27
- 1049 ngc3909, 1050 eso21708 –> ngc3909
- 1653 collinder416, 1655 ngc6882 –> ngc6882
- 357 koposov43, 359 fsr0828 –> koposov43
- 1676 dolidze41, 1677 berkeley85 –> berkeley85
- 387 fsr0856, 388 koposov53 –> koposov53
- 701 eso36814, 702 fsr1343 –> eso36814
- 706 ah03j0748269, 707 fsr1315 –> fsr1315
- 321 fsr0814, 322 koposov36 –> koposov36
- 1079 collinder257, 1085 harvard5 –> harvard5
- 791 eso31203, 793 fsr1394 –> eso31203
- 1908 fsr0436, 1910 skiffj2330p602 –> fsr0436
- 395 koposov63, 396 fsr0869 –> koposov63
- 838 ngc2669, 839 vdbh52 –> ngc2669
Removed GCS:
- 1022 ESO 093 08 –> 19 ESO 93-8 d=0.11
- 1282 BH 208 –> 68 NGC 6256 d=2.36
- 1320 FSR 1758 –> 89 FSR 1758 d=3.18
- 1091 BH 140 –> 28 BH 140 d=4.65
Renamed OCS:
- BH –> VDBH
- vdBergh –> VDB
Renamed:
- Alessi J2327+55 –> Alessi J2327.0+55
Alessi et al 2003
Searching for unknown open clusters in the Tycho-2 catalog (2003)
No Vizier data, extracted and merged Tables 1 & 2. Added ‘RA_ICRS, DE_ICRS’ columns.
Chen et al. 2003
There are two tables listed in Vizier, Table 1 (119 rows) and 2 (144 rows),
with different columns and number of rows. I combined these tables into a single one
using the median for repeated (GLON, GLAT) values and appending [Fe/H] values
when repeated (some are very different).
vdB 1 –> VDB 1
Added columns (RA, DEC). Merged two entries that were present in both tables under
different names: ‘Melotte 111, Coma Ber’ and ‘Melotte 22, Pleiades’. The final table
contains 216 entries.
Fixed the following (GLON, GLAT) coordinates manually because I suspect they are
incorrectly uploaded to Vizier:
Collinder 197: 261.7 +08.9 –> 261.7 +0.89 IC 1848 : 137.2 +00.1 –> 137.2 +1.00
Kharchenko et al. 2003
Vizier table lists 401 entries
Changes:
- Added ‘VDB’ & ‘VDBH’ to names
- Added ‘Aveni-Hunter_1’ as main name for ‘Av-Hunter_1’
- Added ‘Sigma_Orionis’ as main name for ‘Sigma_Ori’
- Added ‘Collinder_205’ to ‘Markarian_18’ (known duplicate name)
- Renamed ‘Basel_11’ to ‘Basel_11a’
- Renamed ‘NGC_2451.1’ & ‘NGC_2451.2’ to ‘NGC_2451_A’ & ‘NGC_2451_B’
Mercer et al 2005
New Star Clusters Discovered in the GLIMPSE Survey
Vizier table contains 92 entries with coordinates only.
Added ‘MCM’ to the names of the entries.
Removed GC MCM_5 (Mercer 5)
Kharchenko et al. 2005
Astrophysical parameters of Galactic open clusters
Vizier table lists 520 entries.
Changes:
- Added ‘VDB’ & ‘VDBH’ to names
- Added ‘Collinder 110’ to ‘Collinder 110A’
Kharchenko et al. 2005 (1)
109 new Galactic open clusters
Vizier table lists 130 entries.
Changes:
- Added ‘ASCC_’ id to ASCC column
- Added alternative names as main names to ASCC column
Kronberger et al 2006
New galactic open cluster candidates from DSS and 2MASS imagery
Vizier Table 2 contains 240 entries. Added ‘RA_ICRS, DE_ICRS’ columns converted from ‘h m s, d m s’ values in “RAJ2000, DEJ2000” columns.
Kronberger 79 had two entries, marked ‘a’ and ‘b’ in the ‘Note’ column. I merged both entries.
Changed ‘ADS 13292 Cluster’ to ‘ADS 13292’.
Kharchenko et al. 2007
Vizier table lists 516 entries.
Changes:
- Added ‘VDB’ & ‘VDBH’ to names
- Removed GC ‘ESO 093-08’
- Removed 52 entries identified as “stellar associations from Mel’nik (2007)” (kept 8 that had names matching known OCs or that looked like they could)
Final table lists 463 entries.
Froebrich et al. 2007
| [A systematic survey for infrared star clusters with | b | <20º using 2MASS](https://ui.adsabs.harvard.edu/abs/2007MNRAS.374..399F) |
Renamed column FRS -> ID. Added FSR_ prefix to the IDs.
Added columns for (RA, DEC) in degrees (from hms).
Removed [, ] characters from names.
Removed:
FSR_1716, FSR_1758identified as a GCFSR_808, FSR_837, FSR_765, identified in the UCC as the same entries asFSR_805, FSR_835, FSR_764
Combined columns ID with Ident which contains secondary names. The Ident
column is defined in the article as: Name of possible known cluster with erroneous
coordinates in SIMBAD. There are eight entries in this DB that appear listed
as separate objects in the UCC after this merge. Below I detail how these were
handled.
Entries only mentioned in BICA2019
These FSR objects are only mentioned in BICA2019 as individual entries, but in
this article they are listed with the following associated names in the Ident
column:
- fsr0297 –> teutsch144
- fsr0380 –> ngc7438
- fsr0911 –> bochum1
- fsr1071 –> ngc2301
- fsr1557 –> teutsch31
- fsr1681 –> ngc5606
Fixes:
- fsr0297 –> BICA2019: removed ‘FSR 297’ entry and added ‘FSR 297’ as alternative name to ‘Teutsch 144’
- fsr0380 –> BICA2019: removed ‘FSR 380’ entry and added ‘FSR 380’ as alternative name to ‘NGC 7438’
- fsr0911 –> BICA2019: added ‘bochum 1’ to ‘FSR 911’
- fsr1071 –> BICA2019: removed ‘FSR 1071’ entry and added ‘FSR 1071’ as alternative name to ‘NGC 2301’
- fsr1557 –> BICA2019: removed ‘FSR 1557’ entry and added ‘FSR 1557’ as alternative name to ‘Teutsch 31’
- fsr1681 –> BICA2019: removed entry; DIAS2002: added ‘fsr 1681’ as alternative name to ‘NGC 5606’
fsr 1436
Froebrich (2007) lists fsr1436 associated to ngc2645.
Glushkova (2010) lists fsr1436 associated to sai92
The pismis6,ngc2645 entry is much more accepted so I add pismis6 as a secondary
name of SAI 92 in GLUSHKOVA2010.
kronberger 6 & kronberger 60
Froebrich (2007) lists fsr0827 associated to kronberger60.
fsr0827 is associated to kronberger6 in Bica et al (2019).
The kronberger60 entry is only mentioned in Dias et al (2002), which
does not list kronberger6. The OC kronberger60 also appears in
Kronberger et al (2006), which has no mention of kronberger6. The DIAS2002
catalogue was done with collaboration in private communication with Kronberger.
Both kronberger6 and kronberger60 have almost the same (ra, dec) coordinates:
kronberger6: 91.091 31.607kronberger60: 91.042 31.496
This all points to an error somewhere where the names kronberger6 and kronberger60
were swapped. The entry kronberger6 has the most associated articles. I
thus add this as the primary identification to DIAS2002.
Piskunov et el. 2007
Towards absolute scales for the radii and masses of open clusters
Vizier table shows 236 entries.
Added ‘VDBH’ and ‘VDB’ naming.
Piskunov et el. 2008
Tidal radii and masses of open clusters
Vizier table shows 650 entries.
Added ‘VDBH’ and ‘VDB’ naming.
Koposov et al. 2008
Abstract: “From this analysis, 15 overdensities were confirmed to be new open clusters and the physical and structural parameters were determined for 12 of them”
Results: “We found that 11 stellar overdensities turn out to be new, optically-visible clusters”
Table 1 in the article lists 11 Koposov clusters and these are used here.
The remaining 4 clusters are listed in Table 2 as “new infrared embedded clusters” with central coordinates only.
Glushkova et al. 2010
“We have found and verified 153 new clusters (…). Color excesses E(B-V ), distance moduli and ages were determined for 130 new and 14 yet-unstudied known clusters”
“All clusters from Table 1 having the other name according to Kronberger et al. (2006) or Froebrich et al. (2007), are listed neither in the database of open clusters (WEBDA) by Paunzen, Mermilliod (2009), nor in the catalog by Dias et al. (2002). That is why we consider them as a new clusters.”
Table 1: 130 entries (new clusters) Table 2: 23 entries (new embedded clusters) Table 3: 14 entries (yet-unstudied clusters)
Total of 167 entries in the three tables.
The Vizier page lists 194 objects. Tables 1, 2 and 3 entries are present in Vizier in its entirety. There are 27 extra entries in the Vizier table
The cluster koposov41;fsr0839 presents RA coordinates that are substantially different
from those listed in the UCC for ‘FSR 0839’.
- Koposov 41, FSR 839 (KOPOSOV2008):
(90.9917, 30.26139); converted from Table 2 in article - FSR 0839 (UCC) :
(90.958 , 30.236) - koposov41;fsr0839 (this DB) :
(97.7417, 30.2614)
Since KOPOSOV2008 is previous to this article, I assume the RA coordinate is incorrect here.
Merged the Name and OtherName columns into a single Name column.
The following entries have the following secondary names:
- koposov43 –> fsr0848
- koposov52 –> teutsch5
These names correspond to other entries in the UCC. Those two koposov entries are related to similar alternative names in the UCC:
- koposov43 –> fsr0828
- koposov52 –> teutsch51
I correct this database to those alternative names.
Added VDBH to the BH entries.
Borissova et al. 2011
New Galactic star clusters discovered in the VVV survey
- Converted
RAJ2000, DEJ2000in hms columns into degree values - Added ‘VVV-CL’ naming with leading zeroes
Kharchenko et al. 2012
The Vizier table contains 650 clusters.
Changes:
- Combined ‘MWSC’ and ‘Name’ columns
- Added ‘VDB’ to names
- Removed ‘Type’ == (‘a’,’g’,’m’,’n’,’r’,’*’)
Final table lists 498 entries.
Kharchenko et al. 2013
Global survey of star clusters in the Milky Way. II. The catalogue of basic parameters
Vizier table contains 3006 clusters.
Changes:
- Combined ‘MWSC’ and ‘Name’ columns
- Added ‘VDB’ & ‘VDBH’ to names
- Removed ‘Type’ == (‘a’,’g’,’m’,’n’,’r’,’s’)
- Merged ‘Dolidze_2, MWSC_3270’ into ‘IC_1311, MWSC_3271’, same OC according to BICA2019
- Removed GCs: VDBH 140, ESO 456-29, FSR 1716, FSR 1758
Final table lists 2262 entries
Schmeja et al. 2014
Vizier table contains 139 clusters.
Scholz et al. 2015
Global survey of star clusters in the Milky Way. IV. 63 new open clusters detected by proper motions
Vizier table contains 63 clusters.
Kharchenko et al. 2016
Vizier table contains 3210 clusters.
Changes:
- Combined ‘MWSC’ and ‘Name’ columns
- Added ‘VDB’ & ‘VDBH’ to names
- Removed ‘Type’ == (‘a’,’g’,’m’,’n’,’r’,’s’)
- Merged ‘Dolidze_2, MWSC_3270’ into ‘IC_1311, MWSC_3271’, same OC according to BICA2019
- Removed GCs: VDBH 140, ESO 456-29, FSR 1716, FSR 1758
Final table lists 2454 entries
Roser et al 2016
Nine new open clusters within 500 pc from the Sun
Vizier table shows 10 entries, two of them are the same cluster ‘RSG 9y’ and ‘RSG 9o’ for which I combine two columns with different values.
For RSG entries 2, 3, 4, 6 and 9 I add as secondary name ‘TRSG X’ to match what’s already in the catalogue.
Loktin & Popova 2017
Updated version of the ‘homogeneous catalog of open cluster parameters’
The Vizier table contains 1052 clusters.
Many proper motion values in this DB are very wrong (see e.g: NGC 2516). We thus do not use these values in the DB.
Contains 11 clusters with an extra name in parenthesis. These were fixed as follows:
- “Alpha_Persei, Melotte 20”
- “Collinder258, Har5”
- “Coma Star, Melotte 111”
- “Herschel1, ASCC41”
- “Hyades, Melotte 25”
- “NGC2645, Pismis6”
- “NGC2682, Melotte 67”
- “NGC3247, Cr220”
- “Pleiades, Melotte 45”
- “Praesepe, NGC2632”
- “Stephenson1, Del_L”
Name changes:
- VDBergh_Hagen –> VDBH per CDS recommendation (added ‘vdBergh-Hagen’ to 43 clusters so that the naming isn’t lost)
- VDBergh –> VDB per CDS recommendation
- Sauer5 –> Saurer 5
- Teusch61 –> Teutsch61
- AlessiJ2327+55 –> Alessi J2327.0+55
- Sigma_Ori –> Sigma_Orionis
- MWSC0 192 –> MWSC 192
Removed entries pointing to a GC:
- berkeley42 (NGC 6749)
- lynga7 (BH 184)
Removed entries that are marked as duplicates in the UCC:
- Collinder 416 (duplicate of NGC 6882)
- Basel 9 (duplicate of Ruprecht 148)
The article says that: “also includes our 48 newly discovered and hitherto unknown poor open clusters” but the CDS table lists 54 named ‘LP_XX’ were XX goes from 01 to 55 (LP 03 is not present in the Vizier table). The last six entries are named ‘50A, 51A, 52A, 53A, 54A, 55A’ so these are probably from a previous article.
These entries share naming convention (LP) with Liu & Pang (2019) presented their new OCs with no formal ID assigned (only numbers)
Borissova et al. 2018
New Galactic star clusters discovered in the disc area of the VVVX survey
- Combined the tables
tablea1andtableb1
The Dist column in Vizier is labeled as kpc but it contains clearly pc values.
The inverted parallaxes differ substantially from the distance values.
Cantat-Gaudin et al. 2018
A Gaia DR2 view of the open cluster population in the Milky Way
Vizier table 1 shows 1229 entries.
Removed FSR_1716, FSR_1758, BH_140 identified as GCs.
Removed Harvard_5, it’s a duplicate of Collinder_258
Renamed:
- vdBergh_XX –> VDB_XX
- BH_XX –> VDBH_XX
Castro-Ginard et al. 2018
A new method for unveiling open clusters in Gaia. New nearby open clusters confirmed by DR2
The Vizier table contains 23 entries. No changes required.
Soubiran et al. 2018
Open cluster kinematics with Gaia DR2
Vizier table contains 861 rows
Naming added:
- BH_XX –> VDBH_XX
- vdBergh_XX –> VDB_XX
Removed as GCs:
- FSR_1716
- VDBH_140, BH_140
Yen et al. 2018
Reanalysis of nearby open clusters using Gaia DR1TGAS and HSOY
Vizier table contains 34 entries. Converted (RA, DE) columns into degrees
Angelo et al. 2019
Investigating dynamical properties of evolved Galactic open clusters
The Vizier table contains 23 entries. No changes required.
Converted RAJ2000, DEJ2000 in hms columns into degree values.
- ESO XXX-SCYY –> ESO XXX-YY
Bastian 2019
Gaia 8: Discovery of a star cluster containing β Lyrae
The article gives no (RA, DEC) values bu states that: “The cluster is perfectly centred on \Beta Lyrae on the sky” so we take the system’s coordinates as the cluster’s coordinates.
Bica et al. 2019
A Multi-band Catalog of 10978 Star Clusters, Associations, and Candidates in the Milky Way
The Vizier table contains 10978 entries. We keep only those with Class1 OC (open
cluster) or OCC (open cluster candidate). This reduces the list to 3564 entries.
Added RA_ICRS and DE_ICRS columns to the DB.
Fixes to duplicated entries:
- MWSC 2776, name listed twice: removed one of the repeated names
- FSR 523, FSR 847, FSR 436: removed the duplicates that showed as single entries
- ESO 393-3: removed name from both entries (cluster not found in CDS)
- MWSC 1025, 1482, 948, 3123, 1997, 1840, 442, 1808, 2204: removed name from both entries (clusters not found in KHARCHENKO12)
- ESO 97-2: removed from Loden 848 as it matches the position of Loden 894 according to CDS
- FSR 972, OCL 344, Collinder 384, FSR 179: removed from both entries, it does not show in CDS or anywhere else
- MWSC 206: removed entry that also showed FSR 60 as the coordinates for FSR 60 are a better match in KHARCHENKO12 for the entry with the single FSR 60 name
Changes to names:
- BH –> VDBH per CDS recommendation
- vdBergh –> VDB per CDS recommendation
- FSR 429.MWSC 3667 –> FSR 429,MWSC 3667
- Carraro 1.MWSC 1829 –> Carraro 1,MWSC 1829
- Cernik 39 –> Czernik 39
- FSR343 –> FSR 343
- ESO456-13 –> ESO 456-13
- de Wit 1 –> Wit 1 (to match KHARCHENKO12)
- JS 1 –> Juchert-Saloran 1 (to match KHARCHENKO12)
- ESO 589-26,MW –> ESO 589-26
- Messineo 1,Cl 1813-18,SAI 126, –> Remove comma at the end
- Alessi J2327.6+5535 –> Alessi J2327.0+55
- TRSG 1 –> RSG 1
- Added ‘Dol-Dzim 9’ to ‘DoDz 9’ to match KHARCHENKO12
- Added ‘Dol-Dzim 11’ to ‘DoDz 11’ to match KHARCHENKO12
- Removed ‘Alessi J0715.6-0722’ as it is an OCC and its position matches that of ‘Alessi J0715.6-0727’
- FSR 1635,MWSC 1635: Removed MWSC 1635, does not match with Kharchenko 2013 coords
- MWSC 2725: removed, is NGC_6455 according to Kharchenko 2013
- MWSC 3168: removed from “FSR 160,SAI 129,MWSC 3168”, it’s Turner 9 according to Kharchenko 2013, not ‘FSR 160’
- MWSC 3422: removed from ‘FSR 290,MWSC 3422’, it’s ‘Barkhatova 1’ according to Kharchenko 2013, not ‘FSR 290’
- ‘Basel 13A’ changed to ‘Basel 13’ and merged the names
- MWSC 26 removed from ‘Haffner 23,OCL 590,MWSC 1127,MWSC 26’, it’s ‘PTB_7 1’ according to Kharchenko 2013
- ‘FSR 1032,MWSC 927’ to ‘FSR 1032,MWSC 926’, correct naming according to Kharchenko 2013
Removed entries pointing to a GC:
- ESO 456-29,MWSC 2761 (Gran 1)
- ESO 93-8,MWSC 1932
- FSR 1758,MWSC 2617
- VDBH 140,vdBergh-Hagen 140,FSR 1632,MWSC 2071
Ryu clusters
This is the only DB that lists the Ryu & Lee (2018) clusters. The original article claims to have found 721 new OCs (923 minus 202 embedded). BICA19 (page 11) says that the Ryu & Lee article lists 719 OCs (921 minus 202 embedded). BICA19 lists in its Vizier table only 711 Ryu OCs, 4 of which are listed with alternative names (Teutsch J1814.6-2814|Ryu 563, Quartet|Ryu 858, GLIMPSE 70|Mercer 70|Ryu 273, LS 468|La Serena 468|Ryu 094). Hence there are 707 Ryu clusters in the final BICA19 Vizier table.
These are very small objects, Ryu & Lee (2018): “The average angular radius of the clusters is 1.3’. More specifically, 902 (98%) clusters are smaller than 3′, and 823 (89%) clusters are even smaller than 2′.”
Bossini et al. 2019
Age determination for 269 Gaia DR2 open clusters
The Vizier table lists 269 clusters.
Added VDBH to the BH entries.
Duplicates that were combined using their average values:
- ASCC124, Alessi37
- ASCC22, Ferrero11
- ASCC112, AlessiTeutsch11
- Harvard5, Collinder258
Renamed:
ngc0188, ngc0752, ngc0381, ngc0225, ngc0581, tongc188, ngc752, ngc381, ngc225, ngc581(removed leading zeroes)
Cantat-Gaudin et al. 2019
Vizier table contains 46 entries. No changes required.
Castro-Ginard et al. 2019
Hunting for open clusters in Gaia DR2: the Galactic anticentre
The Vizier table contains 53 UBC clusters. No changes required.
Dias et al. 2019
Combined tables 2 & 3
Renamed:
- BH –> VDBH
- vdBergh –> VDB
Ferreira et al. 2019
Three new Galactic star clusters discovered in the field of the open cluster NGC 5999 with Gaia DR2
The Vizier table contains 3 UFMG clusters and NGC 5999. This last cluster was removed in the initial version of the DB (don’t remember why).
Added (RA_ICRS,DE_ICRS) columns (converted from h:m:s and d:m:s).
Liu & Pang 2019
A Catalog of Newly Identified Star Clusters in Gaia DR2
The Vizier Table 3 contains 76 clusters with no acronym given. Neither Table 1 nor 3 in Vizier assign and ID to the entries, only numbers. They do describe the ID columns “Friend of Friend identifier”. Also, in the article Table 1 lists the ID column as ‘FoF ID’. Added ‘FoF_’ to the entries’ IDs. This also matches the HUNT23 denomination.
Table 1 contains 2443 entries with classes:
1 = likely star cluster candidate: nG<17>=50, tage>5Myr, rn<0.1, d2<0.05 (569 occurrences) 2 = nearby star cluster candidate that need further confirmation: nG<17>=50, tage>5Myr, rn<0.1 (127 occurrences) 3 = star cluster candidate that need further confirmation (1747 occurrences)
Table 1 also has a ‘n_ID’ column that indicates if the entry is new, which identifies the 76 clusters also present in Table 1.
I discard all Class 2 and 3 entries. I also discard from Class 1 FoF entries that have no assigned CG18 id.
Added VDBH_ to the BH_ entries.
Monteiro et al 2019
Distances and ages from isochrone fits of 150 open clusters using Gaia DR2 data
There are 4 Vizier table containing 150 clusters in total.
Original tables do not contain (RA, DEC) data, these columns are added by Simbad.
Changes:
- Added ‘_’ to names in 3 tables
- Added ‘COIN-Gaia’ to ‘COIN’ entries
- Added VDBH to BH entries
- Corrected (RA, DEC) for ‘DC 1’ entry: took values from UCC, Simbad was assigning a galaxy’s value
Sim et al. 2019
207 New Open Star Clusters within 1 kpc from Gaia Data Release
Data taken from Table 2 in the online article (contains 207 UPK clusters)
Added (ra, dec) columns and a plx column estimated as 1000/dist_pc.
Castro-Ginard et al. 2020
Hunting for open clusters in Gaia DR2: 582 new open clusters in the Galactic disc
The Vizier table contains 570 UBC clusters.
Fixed wrong ra coordinates for UBC595 and UBC181.
Duplicated entries in other works
“we find that one of these objects, UPK 19, corresponds to UBC 32, already reported by CG18” –> Added UBC 32 as primary denomination of UPK 19 in SIM2019
“Liu & Pang (2019) … we find 4 coincidences with CG18 and CG19. These are the cases for their clusters with IDs 1973, 2143, 2230, and 2385 which are identified with UBC 74, UBC 72, UBC 56, and UBC 7” –> These were already identified as UBC entries
Vizier duplicates
“eight of our OC candidates are identified with one UPK object (Sim et al 2019)” –> Does not specify the names
“we find 45 cases that are compatible with one of the 76 from Liu & Pang (2019)” –> Does not specify the names
The Vizier table shows 51 UBC objects with the ‘a’ note which indicates duplication with either of those articles (SIM2019, LIUPANG2019), but does not indicate which ones. There is also a ‘b’ note which indicates ‘tentative identification with Kharchenko’, also with no names given.
Cantat-Gaudin et al. 2020
Painting a portrait of the Galactic disc with its stellar clusters
The Vizier table contains 2017 clusters. This DB lists the FSR clusters as “FSR_XXXX” with leading zeros and the ESO clusters as “ESO_XXX_XX” with leading zeroes.
Changes to names:
- BH –> VDBH per CDS recommendation
- vdBergh_ –> VDB per CDS recommendation
- LP_ –> FoF_ to match the original work LIUPANG19
- Sigma_Ori –> Sigma_Orionis
Donor et al. 2020
The Vizier table lists 128 clusters. Did not use the ages listed as they are from the MWSC database.
Added VDBH to the BH entry.
Ferreira et al. 2020
The Vizier table contains 25 UFMG clusters. Added (RA_ICRS,DE_ICRS) columns.
Hao et al. 2020
Sixteen Open Clusters Discovered with Sample-based Clustering Search of Gaia DR2
Data from Table 2 lists 16 clusters with no acronym. Used ‘HXWHB_’ to match HUNT23.
Casado 2021
New open clusters found by manual mining of data based on Gaia DR2
Data from Table 1 in the article lists 20 ‘Casado_’ clusters.
Dias et al. 2021
Updated parameters of 1743 open clusters based on Gaia DR2
The Vizier table contains 1743 clusters. This DB lists the FSR clusters as “FSR_XXXX” with leading zeros and the ESO clusters as “ESO_XXX_XX” with leading zeroes.
The table lists 177 LIUPANG19 clusters because it includes clusters not listed as new by the authors. Changed ‘LP_’ to ‘FoF_’ for consistency. Removed the leading zero in ‘FoF_XXXX’. Cluster ‘LP_866’ was duplicated (LP_0866), removed the second entry.
Changes to names:
- BH –> VDBH per CDS recommendation
- vdBergh –> VDB per CDS recommendation
- Sigma_Ori –> Sigma_Orionis
The r50 column is listed with ‘pc’ units in Vizier, but it is degrees unit.
It also shows 4 clusters with very large r50 values which could be listed
in pc units:
Cluster DIAS21 CG20 BICA19
----------------------------------
Berkeley_58 32.969 0.06 0.058
Blanco_1 13.218 0.699 0.833
NGC_7789 9.324 0.211 0.133
Berkeley_59 3.097 0.137 nan
Removed entries that are stored as a single entry in the UCC.
- Harvard_5 (duplicate of Collinder_258)
Ferreira et al. 2021
New star clusters discovered towards the Galactic bulge direction using Gaia DR2
The Vizier table contains 34 UFMG clusters.
He et al. 2021
A catalogue of 74 new open clusters found in Gaia Data-Release 2
The Vizier table contains 74 with no acronym, added ‘HXHWL_’ to match HUNT23.
Added (RA_ICRS,DE_ICRS) columns.
Hunt & Reffert 2021
Improving the open cluster census. I. Comparison of clustering algorithms applied to Gaia DR2 data
The Vizier table lists 41 ‘PHOC_’ clusters.
Jaehnig et al. 2021
Changes to names:
- NGC 2451 –> NGC 2451B (better plx match than with NGC 2451)
- Added VDBH
Removed entries pointing to a GC:
- Berkeley 42 –> NGC 6749
Rain et al 2021
A new, Gaia-based, catalogue of blue straggler stars in open clusters
Vizier table contains 408 entries.
Added ‘Markarian’ to ‘mrk 18, mrk 50’. Renamed ‘Coin’ to ‘Coin-Gaia’.
Santos-Silva et al. 2021
Canis Major OB1 stellar group contents revealed by Gaia
Data from Table 2 in the article lists 15 ‘CMa-‘ clusters (Vizier has no entries for the tables). This table lists two values for each fundamental parameter.
Contains two ‘FOF’ clusters.
Castro-Ginard et al. 2022
Hunting for open clusters in Gaia EDR3: 628 new open clusters found with OCfinder
The Vizier table contains 628 UBC clusters numbered starting at UBC 1001 to differentiate them from the UBC clusters found using Gaia DR2 in the previous articles.
Hao et al. 2022
Newly detected open clusters in the Galactic disk using Gaia EDR3
The Vizier table lists 704 ‘OC_’ clusters.
Removed entries pointing to a GC:
- OC 0586 –> BH 140
He et al. 2022
New Open-cluster Candidates Found in the Galactic Disk Using Gaia DR2/EDR3 Data
The Vizier table contains 541 with no acronym, added ‘CWNU_’. Replaced ‘—’ with ‘’ for RV values.
He et al. 2022
A Blind All-sky Search for Star Clusters in Gaia EDR3: 886 Clusters within 1.2 kpc of the Sun
The Vizier table contains 270 new ‘CWNU_’ clusters. Removed 50 Theia entries.
Changes to names:
- ESO_489-01 –> ESO_489_01
- vdBergh –> VDB per CDS recommendation
- BH –> VDBH
- Sigma_Ori –> Sigma_Orionis
- Changed ‘LP_’ to ‘FoF_’
14 entries named ‘H21OC_’ are ‘hxhwl’ entries from He et al 2021. Renamed them as follows:
- H21OC_10 –> HXHWL 10, H21OC_10
- H21OC_12 –> HXHWL 12, H21OC_12
- H21OC_17 –> HXHWL 17, H21OC_17
- H21OC_18 –> HXHWL 18, H21OC_18
- H21OC_22 –> HXHWL 22, H21OC_22
- H21OC_26 –> HXHWL 26, H21OC_26
- H21OC_32 –> HXHWL 32, H21OC_32
- H21OC_33 –> HXHWL 33, H21OC_33
- H21OC_39 –> HXHWL 39, H21OC_39
- H21OC_42 –> HXHWL 42, H21OC_42
- H21OC_45 –> HXHWL 45, H21OC_45
- H21OC_5 –> HXHWL 5, H21OC_5
- H21OC_54 –> HXHWL 54, H21OC_54
- H21OC_69 –> HXHWL 69, H21OC_69
Li et al. 2022
LISC Catalog of Star Clusters. I. Galactic Disk Clusters in Gaia EDR3
The Zenodo table lists 61 ‘LISC_’ clusters. The table contains a column called
t/t_range in Gyr, not sure what it represents.
Perren et al. 2022
The Vizier table lists 25 clusters.
Tarricq et al. 2022
Structural parameters of 389 local open clusters
The Vizier table contains 467 clusters. This DB lists the FSR clusters as “FSR_XXX” with leading zeros and the ESO clusters as “ESO_XXX_XX” with leading zeroes.
Changes to names:
- BH_99 –> VDBH_99
- LP_ –> FoF_
Chi et al. 2023
The table in the article (IOP) lists 46 clusters with no acronym, ‘CWWL_’ was added to match HUNT23.
Chi et al. 2023
LISC Catalog of Open Clusters.III. 83 Newly found Galactic disk open clusters using Gaia EDR3
The article mentions 83 clusters but only 82 are visible in the PDF. I sent an
email to the authors but never got an answer. Added ‘LISC-III’ to the
names to match HUNT23. Added (RA_ICRS,DE_ICRS) columns.
Chi et al. 2023
The table requested to the authors lists 1179 clusters. Added CWWDL following the convention by HUNT23 for DBs with no acronyms.
The (GLON, GLAT) column in their Vizier table does not appear to match the converted (RAICRS, DEICRS) values.
Cordoni et al 2023
Photometric binaries, mass functions, and structural parameters of 78 Galactic open clusters
Two Vizier tables available (tablec1 & tablec2) that were combined into a single one.
He et al. 2023
Unveiling hidden stellar aggregates in the Milky Way: 1656 new star clusters found in Gaia EDR3
The Vizier table contains 1656 with no acronym, added ‘CWNU_’. Added
(RA_ICRS,DE_ICRS) columns.
He et al. 2023 (1)
The Vizier table lists 2085 clusters, 28 of which are flagged as ‘GCC’ (GC candidate). These were removed leaving 2057 entries.
‘Ruprecht 123’ is listed twice as: ‘Ruprecht_123_v0’ & ‘Ruprecht_123’. Removed the ‘Ruprecht_123_v0’ entry as the RA value of the other entry was more similar to the values listed in the UCC. The final number of entries is 2056.
There are 20 ‘LP_XXX’ OCs that were renamed ‘FoF_XXX’, removing leading zeros.
Hunt & Reffert 2023
Improving the open cluster census. II. An all-sky cluster catalogue with Gaia DR3
The Vizier table contains 7167 entries.
In the initial UCC version all the Theia entries were removed along with the moving groups. In version 231105 the Theia entries labeled as OCs were re-incorporated.
A total of 157 HSC clusters have center values that do not align with the medians of their members. Changed these centers to the members’ medians. In 25/02/06 the original (RA; DEC; GLON; GLAT) values were re-included in HUNT2023.csv (no changes required to the main UCC catalogue so new version was generated).
Rounded float values in several columns.
Removed Teutsch 182 because it is listed along with UBC 6 and these are the same OC according to BICA19. Also Teutsch 182 has wrong center coordinates.
Changes to names:
- BH –> VDBH per CDS recommendation
- vdBergh_ –> VDB_ per CDS recommendation
Removed entries pointing to a GC:
- Palomar 2, 7 (listed as IC_1276) 8, 10, 11, 12
- ESO_452-11 (listed as 1636-283)
- Pismis 26 (Ton 2)
- Lynga_7 (BH 184)
- HSC 2890, HSC 134 –> Gran 3 and 4
HSC 2605 has very similar coordinates and proper motions to globular NGC 5139 but its parallax is different, so it was not removed.
Fixes:
- ESO_429-429 –> ESO_429-02 (according to CDS coords)
- CMa_2 –> CMa_02
- AH03_J0748+26.9 –> AH03_J0748-26.9
- Juchert_J0644.8+0925 –> Juchert_J0644.8-0925
- Teutsch_J0718.0+1642 –> Teutsch_J0718.0-1642
- Teutsch_J0924.3+5313 –> Teutsch_J0924.3-5313
- Teutsch_J1037.3+6034 –> Teutsch_J1037.3-6034
- Teutsch_J1209.3+6120 –> Teutsch_J1209.3-6120
Just et al. 2023
Global survey of star clusters in the Milky Way. VII. Tidal parameters and mass function
Vizier table lists 3017 clusters.
Changes:
- Added ‘MWSC_’ to names
- Took names from the Kharchenko et al 2013 List of MWSC objects which contains naming for all MWSC objects (this database only lists MWSC ids)
- Added ‘VDB’ & ‘VDBH’ to names
- Added ‘Type’ column with values from Kharchenko et al 2013
- Removed ‘Type’ == (‘a’,’g’,’m’,’n’,’r’,’s’)
- Merged ‘Dolidze_2, MWSC_3270’ into ‘IC_1311, MWSC_3271’, same OC according to BICA2019
- Removed GCs: VDBH_140, ESO_456-29, FSR_1716, FSR_1758
Final table lists 2435 entries.
Li & Mao 2023
LISC Catalog of Star Clusters. II. High Galactic Latitude Open Clusters in Gaia EDR3
The Zenodo table lists 56 ‘LISC’ clusters but only 35 are kept as “real” objects. The parallax distances are in very bad agreement with the the estimated distance moduli. These appear to either be MC clusters or not real clusters at all. HUNT23 recovers 0% of these clusters.
Piatti et al 2023
Extracted data from PDF.
- XDOCC-0Y –> XDOCC-Y
Qin et al. 2023
Hunting for Neighboring Open Clusters with Gaia DR3: 101 New Open Clusters within 500 pc
Tables (provided by Qin & Chen) lists 101 ‘OSCN_’ clusters.
Added VDBH to the BH entries.
Alfonso et al. 2024
Exploring Galactic open clusters with Gaia: I. An examination in the first kiloparsec
- BH –> VDBH
- vdBergh –> VDB
The coordinates for ASCC 123 are incorrect and appear to be those that correspond to the cluster Stock 12.
Cavallo et al. 2024
The Vizier table lists 6413 entries. Removed all entries classified as ‘g’
(globular clusters, 116 entries) or ‘m’ (moving group, 145 entries). Entries with
no kind info: Can-Battlo 1, UBC 92, UBC 93, UBC 94, UBC 95, UBC 96, UBC 97.
The DB contains now 6152 entries.
Removed entries pointing to a GC:
- Palomar 2, 8, 10, 11, 12
- Pismis 26 (Ton 2),
- IC 1276 (Palomar 7),
- 1636-283 (ESO 452-11)
- Lynga 7 (BH 184)
- HSC 2890 and HSC 134 (located very close to Gran 3 and 4)
The DB contains now 6141 entries.
Changes to Cluster column:
- Replaced
_with empty spaces - Changed
vdberghforVDB - Added
VDBHtoBH
Fixed names:
- ESO 429-429 –> ESO 429-02 (according to CDS coords)
- CMa 2 –> CMa 02
- AH03 J0748+26.9 –> AH03 J0748-26.9
- Juchert J0644.8+0925 –> Juchert J0644.8-0925
- Teutsch J0718.0+1642 –> Teutsch J0718.0-1642
- Teutsch J0924.3+5313 –> Teutsch J0924.3-5313
- Teutsch J1037.3+6034 –> Teutsch J1037.3-6034
- Teutsch J1209.3+6120 –> Teutsch J1209.3-6120
This DB contains ~900 entries with large differences (>10 arcmin) in its (ra, dec)
center coordinates compared to the UCC’s values (and/or large relative parallax
differences): 390 HSC, 208 Theia, 90 CWNU, 50 UPK, 26 OCSN, and others.
The author explains that their values com from the “mean values of the member’s coordinates”.
The Teutsch 182 / UBC 6 cluster
This catalogue inherits the HUNT23 objects, thus it includes Teutsch 182 classified as an open cluster. This object was removed from HUNT23 because it is the same cluster as UBC 6 according to BICA19. The coordinates I could find for these clusters are:
- BDCCT (Bruno’s Dirty Compilation of Clusterlike Things, 2013)
Teutsch 182 (ra, dec) = (22 56 20, +51 05 53) -> (344.083, 51.098) (lon, lat) = (105.167, -7.760) - BICA19
Teutsch 182 / UBC 6 (ra, dec) = (22 55 47 +59 11 05) -> (343.9458, 59.18472) (lon, lat) = (105.13, -7.63)Note that the (ra, dec) values do not match the (lon, lat) values.
- CASTRO18
UBC 6 (ra, dec) = (343.9518, +51.199) (lon, lat) = (105.137, -7.633) - CG2020
UBC 6 (ra, dec) = (344.010, +51.187) (lon, lat) = (105.165, -7.660) - HUNT23
Teutsch 182 (ra, dec) = (343.7939, +59.225) UBC 6 (ra, dec) = (344.0718, +51.1448)Where the Teutsch 182 values appear to be inherited from BICA19
- CAVALLO24
Teutsch_182 (ra, dec) = (344.9286, +58.8156) UBC 6 (ra, dec) = (343.9912, +51.1776)
Summary:
According to the 2013 BDCCT catalog, the UBC 6 coordinates in later catalogues correspond to Teutsch 182.
BICA19 lists wrong (ra, dec) coordinates for Teutsch 182 and UBC 6, but correct galactic coordinates, which it classifies as the same cluster.
HUNT23 apparently inherits the coordinates for Teutsch 182 from BICA19, and the coordinates for UBC 6 from newer catalogues.
Hence, we remove the Teutsch 182 entry from the catalog because the UBC 6 entry contains the correct coordinates and matches the fundamental parameter values listed in other DBs.
Celli et al 2024
Mass and wind luminosity of young Galactic open clusters in Gaia DR2
Vizier table lists 387 entries
Added VDBH to the BH entries, added VDB to the vdBergh entries.
Added ‘FoF_403’ to ‘LP_403’.
Hunt et al. 2024
Vizier table lists 7167 entries, same as HUNT2023. The entries are classified as:
o = open cluster
m = moving group
g = globular cluster
d = too distant to classify
r = rejected - see Note column
Removed all entries except those of type o; 5647 remain. Only use MassTot column
for the parameters, the coordinates and remaining parameters are all equivalent to
HUNT2023.
Rounded almost all columns to 5 digits.
Renamed:
- LP –> FoF
- vdBergh –> VDB
- BH –> VDBH
- CMa_2 –> CMa_02
- ESO_429-429 –> ESO_429-02 (according to CDS coords)
- RSG_4 –> RSG_4,TRSG_4
Finally, 46 new entries are added by this database.
Zhang et al. 2024
When LAMOST meets Gaia DR3 Exploring the metallicity of open clusters
There are two Vizier tables that list 1131 and 1121 entries. The difference is that 10 entries have no assigned metallicity and are thus missing from the second table.
Changes:
- Combined both tables
- Added ‘_’ to names
- Converted (RA, DEG) columns to degrees
- XDOCC_2 –> XDOCC_02
Removed:
- GCS: NGC_5466, NGC_6218, NGC_7089, NGC_7078, NGC_6254, NGC_5024
- Entries marked as ‘moving group’ (30) or ‘rejected’ (theia6046) in HUNT2024
Almeida et al. 2025
Vizier table lists 1724 entries.
Added naming:
- BH to VDBH
- vdBergh to VDB
- FoF to LP (removing a leading 0 to 28 entries)
- NGC 1976 to Trapezium-FG
Removed duplicated:
- Fof 866 is listed as LP_866 and LP_0866. I removed LP_0866 because it has a Mflag=2
- Collinder_258 & Harvard_5 are the same entry in the UCC. Removed Harvard_5 since Collinder_258 is a gold sample entry.
Carrasco-Varela et al. 2025
Vizier table lists 83 entries.
Removed entries of type ‘globular_cluster’. Added underscores to cluster names for appropriate identification.
Added ‘FoF_45’ as main name of ‘lp_45’.
Final list contains 42 entries.
Hu & Soubiran 2025
Metallicities of old open clusters: A new Galactic map
Renamed:
- Teutsch_J1037.3+6034 –> Teutsch_J1037.3-6034
- Teutsch_J1209.3+6120 –> Teutsch_J1209.3-6120
Nizovkina et al. 2025
Refining open cluster parameters with Gaia XP metallicities
Vizier table lists 100 rows for 20 OCs (5 per OC, obtained with different prior [Fe/H] values).
Combined so that only one row per OC remained. Final table contains 20 entries.